The Best Location for Warning Lights

X-ray Warning Lights: Where is the Best Location to Mount Safety Warning Signs?

It may be commonly overlooked when using an X-ray room day in and day out, but at some point, somebody has put a lot of thought into one specific thing… where on Earth is the best location to install the warning sign for a radiation-controlled area?


What is the Purpose of a Warning Light Outside a Medical X-ray Room?

Warning lights are a requirement for rooms that utilise radiation, whether that be from a radioactive source or gamma and X-ray equipment that generates radiation. The whole reason for this is that radiation isn’t exactly obvious without someone actually telling you it’s there, and you certainly don’t want to find out when it’s already far too late.


How Does an X-ray Warning Light Work?

From X ray to CT, it is important that the entrance door is clearly marked and illuminated with a sign that states the type of radiation and whether it is safe to enter. If the yellow area is illuminated, it means that the room is currently in a functional state and is ready to operate for its purpose.

Once the red area is lit and displayed, there will be radiation contained within the room that should only be exposed to the patient receiving the controlled dosage. To do this, the X-ray unit is connected directly to the mounted X-ray warning light so that when the X-ray equipment is being used through a power supply to the X-ray unit, the second section is illuminated on the LED warning-sign to say that there are X-rays in use.

Okay, so here is a scenario…

You are the electrician. You are holding a bulky box warning light in your hands along with some drawings and a specification that states that a warning-light is required for this radiation room.  However, there is no specific location drawn on the drawings as to where and at what height the box needs to be.  You know that if you put it in the wrong location then you could be responsible for wiring it all up in the wrong position.

You are then faced with the question; “should I go for it, or should I go ask somebody else?”. You choose the latter and they are not sure either as they do not want to be held accountable.  Finally, you manage to locate drawings describing the approximate whereabouts to place the sign, but then you notice that there is another entrance next to it and think; “what if people get confused with the doors?

What if it sticks out of the wall too much?  What if people can’t see the sign from that angle?”  So you try to place the box above the entrance, but there is no space above the frame, and even if there was, people wouldn’t see it in such a narrow corridor.  Also if it is installed above the frame, would it be easy to maintain, clean and service?

Of course, these are all issues that need to be considered when installing a warning light. The radiation room is going to be used for a long time and contains a very expensive piece of equipment. It is a hard decision to take responsibility for,  so where is the best location for a warning light?

After feedback from the hospital, veterinary, dentistry, veterinary, chiropractic users, their patients, and research about this topic, Raybloc came up with a solution: A warning-light that not only does not require servicing thanks to LED technology, but is clearly visible, at eye level, and in a location that is easily recognised to what door it represents.  This location is on the opening face of the door leaf itself.

toshiba-xray-warning-light-Radiation Raybloc X-ray protection

Flush-Mounted Door Warning Lights

The new design allows easy recognition of which entrance the radiation signage is referring to with zero ambiguity. The wording of the signage can be amended pre-installation to whatever the room requires. It has zero maintenance or servicing; because of the LED functionality, there are no bulbs to blow.

This is a huge bonus for controlled areas within healthcare facilities since without functioning warning-signage, the room cannot operate. And, because it is flush with the door, it can be wiped down with the leaf, hence no dirt/dust traps which increases their appeal even further from an infection control standpoint.  Oh, and let’s not forget, it replaces the bulky old fashion boxes on the wall with conduit running down the wall.

The final result is a real next-generation innovation for X ray warning lights in the UK, Europe, and now around the world.  More and more architects, RPAs, radiologists, radiation protection officers, and contractors are specifying the flush mount LED warning lights, not just for the practicality and convenience of no room downtime due to blown bulbs, but for their stylish looks also.  Be sure to be ahead of the game and let your next builder or carpenter know about this new product for medical practices.

Final Words

Warning signs are a necessity for rooms containing radiation to make sure that people entering the room are aware of the dangers present at a given time. Fully illuminated when the X-ray equipment is turned on, the visibility of these signs is imperative.

Wall-mounted warning lights are a traditional choice but do not offer the optimal positioning as they do not fully indicate which entrance the sign refers to and can easily be missed, especially if they are above or below eye level. Raybloc’s innovative flush-mounted warning-light is positioned into the face of the door, at eye level, so that there is zero ambiguity about which room is being labelled. Maintenance-free, and as easy to install as a boxed warning-light.


Where is the best location for a warning light in a controlled radiation area?

To guarantee that the signage is visible upon entry into the controlled area, it is recommended to have the sign directly on the face of the leading leaf of your doorset. With a Raybloc flush-mounted warning-light, the sign is flushed into the door for ease of cleaning and contains vibrant LEDs for an unmissable appearance.

How do warning lights turn on?

The yellow text is illuminated once energy is supplied to the X-ray machine, however, this does not mean the X-ray machine is in operation. Once the switch is pressed for the X-rays to be ready to begin being emitted, the red LED is activated and the bottom text is illuminated. If the warning light is inactive for whatever reason, the X-ray machine will not operate so it is impossible for the signage to misinform on the presence of radiation.

Why is it important to warn against X-rays?

X-rays are a form of ionising radiation and can therefore lead to adverse effects when a person is exposed to them over extended periods of time. Warning-signage is particularly important to medical staff who spend long durations of time around controlled areas and must be correctly informed on whether it is safe to enter these areas.

To find out more about our X-ray protection products, download our eBook today.

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Do not skip corners when it comes to radiation protection. It is what shields you, your staff, and your patients from harmful radiation. There is no compromise when it comes to people’s lives. Call today to speak to one of our x-ray protection experts on 01902 633383 or email Follow us on Facebook, LinkedIn and Twitter.

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